Anthropic banned me for 'suspicious signals'

Anthropic banned me for "suspicious signals"

A paying Claude Max user at $200/month describes being banned by Anthropic with a vague 'suspicious signals' email, no explanation, and an appeal process that feels like a black box. He cites similar reports from other users, often right after upgrading to paid tiers, and contrasts the treatment of individuals with that of big API customers. He concludes that relying on a single frontier lab is risky and that diversifying AI providers is now a practical necessity.